Reduced board space and design costs with precision data converters

Texas Instruments (TI) announced the release of the DAC8775, a digital-to-analog converter (DAC) product that simplifies precision and power supply design.

The 16-bit DAC8775 operates on a single power rail with a wide range of 12V to 36V and uses an integrated buck/boost converter to generate all necessary internal power, saving design time, cost, and significant board space.

The 4-channel DAC8775 is suitable for factory automation and process control equipment using input/output (I/O) modules that require providing many channels in a smaller space. By combining 4–20mA current and voltage drivers with built-in precision references with buck/boost converters, the DAC8775 enables a miniaturized overall system footprint.



TI stated that as its diverse portfolio of precision data converters expands, highly integrated DAC products enable small yet superior product designs and provide enhanced diagnostic capabilities.

The DAC8775 includes on-chip diagnostic functions such as open load, short circuit, overtemperature, CRC (cyclic redundancy check), watchdog timer, and smart warning functions for monitoring specified voltages. In addition, it has an innovative automatic learning function that can calculate the load impedance in a 4 to 20 mA loop and clamp the power supply.

The DAC8775 dynamically regulates current load-based power supply on a 4 to 20 mA loop and provides a Total Unadjusted Error (TUE) of 0.1% Full Scale Range (FSR) over a wide industrial temperature range of -40°C to 125°C, allowing developers to operate output modules at higher temperature ranges.